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Dynamic topology resilience for quantum networks

Dynamic topology resilience for quantum networks
Dynamic topology resilience for quantum networks

In quantum repeater networks, the varying stability of entangled quantum links makes dynamic topology resilience an emerging issue. Here we define an efficient topology adaption method for quantum repeater networks. The model assumes the random failures of entangled links and several parallel demands from legal users. The shortest path defines a set of entangled links for which the probability of stability is above a critical threshold. The scheme is utilized in a base-graph of the overlay quantum network to provide an efficient shortest path selection for the demands of all users of the network. We study the problem of entanglement assignment in a quantum repeater network, prove its computational complexity, and show an optimization procedure. The results are particularly convenient for future quantum networking, quantum-internet, and experimental long-distance quantum communications.

quantum communication, quantum entanglement, quantum networks, quantum repeater, quantum Shannon theory
SPIE
Gyongyosi, L.
bbfffd90-dfa2-4a08-b5f9-98376b8d6803
Imre, S.
210dce74-aeca-453e-81d0-96d4e866cf0f
Gyongyosi, L.
bbfffd90-dfa2-4a08-b5f9-98376b8d6803
Imre, S.
210dce74-aeca-453e-81d0-96d4e866cf0f

Gyongyosi, L. and Imre, S. (2018) Dynamic topology resilience for quantum networks. In Advances in Photonics of Quantum Computing, Memory, and Communication XI. vol. 10547, SPIE.. (doi:10.1117/12.2288707).

Record type: Conference or Workshop Item (Paper)

Abstract

In quantum repeater networks, the varying stability of entangled quantum links makes dynamic topology resilience an emerging issue. Here we define an efficient topology adaption method for quantum repeater networks. The model assumes the random failures of entangled links and several parallel demands from legal users. The shortest path defines a set of entangled links for which the probability of stability is above a critical threshold. The scheme is utilized in a base-graph of the overlay quantum network to provide an efficient shortest path selection for the demands of all users of the network. We study the problem of entanglement assignment in a quantum repeater network, prove its computational complexity, and show an optimization procedure. The results are particularly convenient for future quantum networking, quantum-internet, and experimental long-distance quantum communications.

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More information

Published date: 22 February 2018
Venue - Dates: Advances in Photonics of Quantum Computing, Memory, and Communication XI 2018, , San Francisco, United States, 2018-01-29 - 2018-01-31
Keywords: quantum communication, quantum entanglement, quantum networks, quantum repeater, quantum Shannon theory

Identifiers

Local EPrints ID: 422600
URI: http://eprints.soton.ac.uk/id/eprint/422600
PURE UUID: 4cea1b62-32d8-4565-8d05-9edf2df19185

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Date deposited: 26 Jul 2018 16:30
Last modified: 17 Mar 2024 12:08

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Contributors

Author: L. Gyongyosi
Author: S. Imre

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